# A Bandit 280XP Rebuild, and the Timing-Gear Warning People Misread

> One documented 280XP: a $993.44 hydraulic motor read off an invoice on camera, a full engine rebuild, and why the grenade warning is about reassembly, not failure.

Updated: 2026-08-21. Source: Chipper Risk — https://chipperrisk.com/guides/engine-rebuild-case/ (claims cited to primary sources; see /methodology/).

Our [Bandit 280XP](/models/bandit-280xp/) record is built on one owner and two videos, tracking what appears to be the same machine over time: a hydraulic system repair, then a full engine rebuild. It is a single machine, not a fleet. But it produced the hardest price in the entire chipper database, and it produced a warning that is easy to read backwards.

The price first. OEM hydraulic drive motor, read directly off an invoice on camera: $993.44. Not a range, not a dealer estimate, not "about a thousand." A verbatim invoice figure, which is why we treat it as high confidence and why it keeps showing up across our records as the reference point for what a chipper drive motor costs.

## The hydraulic failure: fluid going nowhere

The feed drive on this machine is hydraulic. An engine-driven pump sends pressurized fluid to a motor that turns the feed roller. The owner found fluid "bypassing inside" the feed drive motor, which is the classic description of internal wear: the seals and clearances have opened up enough that pressure leaks around inside the motor instead of doing work. The feed goes weak, then dead.

There is a diagnostic detail in that video worth carrying to an inspection. A dealer's comment relayed on camera calls a leaking motor versus a worn motor a "dead giveaway" tell. Externally wet is a different problem from internally bypassing, and they get confused constantly, including in the naming: the video notes this part is commonly mis-called "the pump."

It was not this owner's first hydraulic bill. He had already replaced the pump on the same machine, in his words because he "actually blew that up." Feed hose plumbing back to the engine-mounted pump also came out for replacement during the same session. Pump, then motor, then hoses. Same drive system, wearing out in sequence.

What we cannot tell you is whether that sequence is typical for the model. We have one machine. Treating one owner's run of hydraulic failures as a Bandit pattern would be exactly the kind of claim this site exists to avoid.

## The rebuild, and what the grenade line actually means

After the feed system was working again, the same owner tore the engine down completely. On camera: a dial-bore gauge checking cylinder wear, timing gears marked and inspected, and a rebuild kit that "came with everything," meaning rod bearings, main and crank bearings, and oil sprayers as one purchase rather than itemized parts.

Now the line everybody quotes. During the teardown, the owner warns that a timing-gear mark falling out of alignment "grenades the motor."

Read that carefully, because it is a warning about reassembly, not a diagnosis. He is not saying the timing gears failed and destroyed this engine. He is saying that if you pull an engine apart and do not verify the timing marks going back together, you can cause catastrophic internal failure yourself. It is the single most useful sentence in that video for anyone considering a DIY rebuild, and it gets repeated online as though it were the failure that started the story.

The honest position: our record does not establish why this engine needed rebuilding. Cylinder wear was measured, bearings and oil sprayers were replaced, and the owner did the work. The root cause is not stated in the source, so we do not state one.

## The cost we have, and the costs we do not

Here is where most articles would hand you a rebuild total. We do not have one. The rebuild kit was bought as a single kit and the price was not captured in the sourced material. Neither was the machine's purchase price, and neither was the labor. Those sit as open TODOs in our dossier.

What the owner did say is the reasoning: the rebuild was worth it "because I got the chipper itself for so cheap." That is the entire economic logic of a rebuild project stated in one sentence, and it depends completely on a number we do not have. Anyone who publishes an all-in rebuild total for this machine is making it up.

One real ownership cost did come through: dumping a truckload of chips runs 10 to 20 bucks depending on where you are. Small, constant, and not in anybody's spreadsheet.

## What we can and cannot tell you about price

We do not publish a market band for the 280XP. Machinio returned an HTTP 403 on the model query and no forum thread exists for it, so we have no comp set worth calling a band. That is a gap, and we would rather name it than manufacture a range.

For scale in the same size class, the bands we do publish: the [Vermeer BC1800XL](/models/vermeer-bc1800xl/) runs roughly $13,000 to $80,000 across fifteen listings with outliers flagged, and the [Bandit 250XP](/models/bandit-250xp/) reaches up to $46,000. Those are different machines. Use them as a sense of the class, not as a 280XP quote.

## What this case is actually good for

Not as a warning against 280XPs. As a rehearsal for the arithmetic you have to do on any cheap used chipper.

The one hard number, $993.44, is parts only, for one component of one system. Add the pump this owner had already replaced, the hoses, the hydraulic diagnosis, and then an entire engine rebuild kit plus the labor to install it. The rebuild path only works when the purchase price is low enough to absorb all of that, and the only person who can run that math is the person who knows what the machine cost.

So before you buy a cheap one: run the feed drive under load and watch for the slow, weak response that says a motor is bypassing internally. Pull the engine oil and look for metal. Ask whether the timing was ever disturbed and whether anyone verified the marks going back together. And if the seller cannot answer the hydraulic history, price the machine as though the motor is next, because on the one documented unit we have, it was.

The bearing side of this same calculation, including what actually kills chipper bearings, is in our [drum bearing guide](/guides/drum-bearing-failures/).